（python-codefoces）Codeforces Round #540 (Div. 3) A. Water Buying

https://codeforces.com/contest/1118/problem/A python代碼： import math q=int(input()) for i in range(q): n,a,b=map(int,input().split()) z=(math.floor(n/2)*min(2*a,b)+(n%2)*a) print(z)

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